I currently own a USA made, a Tex Mex (US made parts assembles in Mexico) and a Mexican strat. I play and record with all of them, they are all slightly different and have there one hi and low points.

They are all good axes however, the consensus of opinion is that the quality control is less stringent for the Mexican strats. This means that yes you can get a really good one however it is also possible to buy a real dog.

This makes it really important to try before you buy !!